212322223189 has 2 divisors, whose sum is σ = 212322223190. Its totient is φ = 212322223188.

The previous prime is 212322223147. The next prime is 212322223213. The reversal of 212322223189 is 981322223212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190307082564 + 22015140625 = 436242^2 + 148375^2 .

It is a cyclic number.

It is not a de Polignac number, because 212322223189 - 2²¹ = 212320126037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212322223489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106161111594 + 106161111595.

It is an arithmetic number, because the mean of its divisors is an integer number (106161111595).

Almost surely, 2^212322223189 is an apocalyptic number.

It is an amenable number.

212322223189 is a deficient number, since it is larger than the sum of its proper divisors (1).

212322223189 is an equidigital number, since it uses as much as digits as its factorization.

212322223189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The spelling of 212322223189 in words is "two hundred twelve billion, three hundred twenty-two million, two hundred twenty-three thousand, one hundred eighty-nine".